I went into the developer program. (Yes, it's the developer device they sent me for free.) I got the ok from my HP representative since she promised me a CDMA device but I ended up getting a GSM device.

Ask her if you can give it back to her and get a verizon pre 2.
If not, you'll need to get a CDMA Pre (or use your own if you have) and have someone help you transplant the electronics into your Pre2 to turn it into a CDMA device.
WebOSworld.com will do it for you for a fee (they are vouched for by webosinternals.)

I doubt they would be happy that you are trying to sell it. But as suggested, you could put in your pre+ radio and have a rocking phone. Or you could contact palm and ask them to send you the right phone. Some devs have reported getting cdma phones.